[INFO] cloning repository https://github.com/dbradf/ray-tracer-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dbradf/ray-tracer-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbradf%2Fray-tracer-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbradf%2Fray-tracer-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe9673accce6e8622b3c51f3a2bef1a03b4fc4e2
[INFO] checking dbradf/ray-tracer-rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbradf%2Fray-tracer-rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dbradf/ray-tracer-rust on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dbradf/ray-tracer-rust
[INFO] finished tweaking git repo https://github.com/dbradf/ray-tracer-rust
[INFO] tweaked toml for git repo https://github.com/dbradf/ray-tracer-rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dbradf/ray-tracer-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88e3cd975c46d0efc3dd1868c8beb062fa7fca96ec644e0b862bc64b83aa28b5
[INFO] running `Command { std: "docker" "start" "-a" "88e3cd975c46d0efc3dd1868c8beb062fa7fca96ec644e0b862bc64b83aa28b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88e3cd975c46d0efc3dd1868c8beb062fa7fca96ec644e0b862bc64b83aa28b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88e3cd975c46d0efc3dd1868c8beb062fa7fca96ec644e0b862bc64b83aa28b5", kill_on_drop: false }`
[INFO] [stdout] 88e3cd975c46d0efc3dd1868c8beb062fa7fca96ec644e0b862bc64b83aa28b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a37cf6d10b368ad952354e00f4c3dd51ef39f1b39664c1f0914b59aecff1c79f
[INFO] running `Command { std: "docker" "start" "-a" "a37cf6d10b368ad952354e00f4c3dd51ef39f1b39664c1f0914b59aecff1c79f", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking ray-tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Eq` is imported redundantly
[INFO] [stdout]  --> src/tuple.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::{Eq, PartialEq};
[INFO] [stdout]   |                ^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Eq` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Color` is imported redundantly
[INFO] [stdout]   --> src/camera.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |     use super::*;
[INFO] [stdout]    |         -------- the item `Color` is already imported here
[INFO] [stdout] 87 |     use crate::canvas::Color;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `World` is imported redundantly
[INFO] [stdout]   --> src/camera.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |     use super::*;
[INFO] [stdout]    |         -------- the item `World` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 90 |     use crate::world::World;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Matrix` is imported redundantly
[INFO] [stdout]    --> src/pattern.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |     use crate::{matrix::Matrix, shapes::Sphere};
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout] 191 |
[INFO] [stdout] 192 |     use super::*;
[INFO] [stdout]     |         -------- the item `Matrix` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `EPSILON` is imported redundantly
[INFO] [stdout]    --> src/ray.rs:150:35
[INFO] [stdout]     |
[INFO] [stdout] 148 |     use super::*;
[INFO] [stdout]     |         -------- the item `EPSILON` is already imported here
[INFO] [stdout] 149 |     use crate::shapes::Sphere;
[INFO] [stdout] 150 |     use crate::utils::{equal_f64, EPSILON};
[INFO] [stdout]     |                                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Eq` is imported redundantly
[INFO] [stdout]  --> src/tuple.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::{Eq, PartialEq};
[INFO] [stdout]   |                ^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Eq` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestShape` is never constructed
[INFO] [stdout]   --> src/shapes.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct TestShape {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/shapes.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl TestShape {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 42 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TupleKind` is never used
[INFO] [stdout]  --> src/tuple.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum TupleKind {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `kind` is never used
[INFO] [stdout]   --> src/tuple.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Tuple {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn kind(&self) -> TupleKind {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Shape`
[INFO] [stdout]  --> src/bin/circle.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use ray_tracer::shapes::{Shape, Sphere};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Shape`
[INFO] [stdout]  --> src/bin/plane.rs:6:33
[INFO] [stdout]   |
[INFO] [stdout] 6 | use ray_tracer::shapes::{Plane, Shape, Sphere};
[INFO] [stdout]   |                                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Shape`
[INFO] [stdout]  --> src/bin/sphere.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use ray_tracer::shapes::{Shape, Sphere};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Shape`
[INFO] [stdout]  --> src/bin/plane.rs:6:33
[INFO] [stdout]   |
[INFO] [stdout] 6 | use ray_tracer::shapes::{Plane, Shape, Sphere};
[INFO] [stdout]   |                                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Shape`
[INFO] [stdout]  --> src/bin/circle.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use ray_tracer::shapes::{Shape, Sphere};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Shape`
[INFO] [stdout]  --> src/bin/sphere.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use ray_tracer::shapes::{Shape, Sphere};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.02s
[INFO] running `Command { std: "docker" "inspect" "a37cf6d10b368ad952354e00f4c3dd51ef39f1b39664c1f0914b59aecff1c79f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a37cf6d10b368ad952354e00f4c3dd51ef39f1b39664c1f0914b59aecff1c79f", kill_on_drop: false }`
[INFO] [stdout] a37cf6d10b368ad952354e00f4c3dd51ef39f1b39664c1f0914b59aecff1c79f